Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for 2003 Chevrolet Trailblazer EXT Oxygen Sensor

2003 Chevrolet Trailblazer EXT Oxygen Sensor

My Vehicle Change Vehicle
2003 Chevrolet Trailblazer EXT
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Oxygen Sensors
  • Department
  • Product Fit
  • Brands
  • Prices

29 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor Diagram - 12577588
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor

    PartNumber: 12577588
    OEM 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor - 12577588
    Product Specifications
    • Notes: 4.2 Liter; All Models; 4.2l; Front
    • Other Names: Front Oxygen Sensor, Oxygen Sensor
    • Item Dimensions: 8.4 x 3.1 x 3.1 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 24577273
    • Part Description: 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS, LT, North Face | 6 Cyl 4.2 L GAS
    $65.78 MSRP: $124.16
    You Save: $58.38 (48%)
  • Denso Universal Fit Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 234-4209

    Denso® Universal Fit Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 234-4209
    Product Specifications
    • Notes: OE Quality Universal Replacement Sensor
    • Installation Type: Threaded
    • O2 Sensor Configuration: Universal
    • OE Part Number: 56028232AA, 56028233AA, 56028235AA, 56041345AD, 89465-52200
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511142091
    • Wire Harness Length: 11.77" (299 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Universal Fit Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $41.03
  • Delphi Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - ES20095

    Delphi® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: ES20095
    Product Specifications
    • Notes: 24in Length
    • Connector Shape: Square
    • Position: Rear
    • Terminal Quantity: 4
    • Terminal Type: Blade
    • UPC: 689604144763
    • Wire Harness Length: 16" (400 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS | 8 Cyl 5.3L
    • 2003 Chevrolet Trailblazer EXT | LT | 8 Cyl 5.3L
    • 2003 Chevrolet Trailblazer EXT | North Face | 8 Cyl 5.3L
    Show More
    $53.01
  • OEM 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor Diagram - 12578624
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor

    PartNumber: 12578624
    OEM 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor - 12578624
    Product Specifications
    • Notes: 4.2 Liter; All Models; 4.2l; Rear
    • Item Dimensions: 8.7 x 3.3 x 3.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 24577303
    • Part Description: 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS, LT, North Face | 6 Cyl 4.2 L GAS
    $99.07 MSRP: $186.94
    You Save: $87.87 (48%)
  • Spectra Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - OS5058

    Spectra Premium® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: OS5058
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Square
    • Installation Type: Screw
    • Overall Length: 17 11/16"
    • Position: Upstream
    • Sensor Type: Heated - Zirconia
    • Terminal Quantity: 4
    • Thread: M18 X 1.5 mm
    • UPC: 671607155693
    • Wrench Size: 0.88" (22 mm)
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $30.25
  • Denso Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 234-4112

    Denso® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 234-4112
    Product Specifications
    • Notes: OE Quality Replacement Sensor
    • Connector Gender: Female
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511141124
    • Wire Harness Length: 16.93" (430 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $40.61
  • Walker Products Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 250-24355

    Walker Products® Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 250-24355
    Product Specifications
    • Connector Gender: Female
    • Overall Length: 18.03"(457.962 mm)
    • Position: Downstream Passenger Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620041693
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 14.49"(368.046 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Premium Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $39.05
  • Delphi Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - ES20117

    Delphi® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: ES20117
    Product Specifications
    • Notes: 17in Cone Length
    • Connector Shape: Square
    • Position: Front
    • Terminal Quantity: 4
    • Terminal Type: Blade
    • UPC: 689604145296
    • Wire Harness Length: 17.2" (430 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LT | 6 Cyl 4.2L
    • 2003 Chevrolet Trailblazer EXT | North Face | 6 Cyl 4.2L
    • 2003 Chevrolet Trailblazer EXT | LS | 6 Cyl 4.2L
    Show More
    $51.81
  • OEM 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor Diagram - 12567127
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor

    PartNumber: 12567127
    OEM 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor - 12567127
    Product Specifications
    • Notes: 5.3 Liter; All Models; 5.3l; Front
    • Location: Driver Side; Passenger Side
    • Other Names: Front Oxygen Sensor, Oxygen Sensor
    • Item Dimensions: 8.4 x 3.4 x 3.3 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 Chevrolet Trailblazer EXT Front Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS, LT, North Face | 8 Cyl 5.3 L GAS
    $60.56 MSRP: $114.28
    You Save: $53.72 (48%)
  • Spectra Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - OS6048

    Spectra Premium® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: OS6048
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Square
    • Installation Type: Screw
    • OE Part Number: 8125671270, 12567127
    • Overall Length: 16.75" (425.45 mm)
    • UPC: 671607161915
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $29.17
  • Denso Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 234-4647

    Denso® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 234-4647
    Product Specifications
    • Notes: OE Quality Replacement Sensor
    • Connector Gender: Female
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511146471
    • Wire Harness Length: 12.6" (320 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $35.17
  • Walker Products Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 250-24836

    Walker Products® Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 250-24836
    Product Specifications
    • Connector Gender: Male
    • Location: B1S2 Sensor
    • Overall Length: 14.88"(377.952 mm)
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620039508
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 11.34"(288.036 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Premium Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $36.69
  • Delphi Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - ES20094

    Delphi® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: ES20094
    Product Specifications
    • Notes: 32in Length
    • Connector Shape: Square
    • Position: Rear
    • Terminal Quantity: 4
    • Terminal Type: Blade
    • UPC: 689604144756
    • Wire Harness Length: 16.4" (410 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | North Face | 8 Cyl 5.3L
    • 2003 Chevrolet Trailblazer EXT | LS | 8 Cyl 5.3L
    • 2003 Chevrolet Trailblazer EXT | LT | 8 Cyl 5.3L
    Show More
    $49.28
  • Spectra Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - OS5199

    Spectra Premium® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: OS5199
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Square
    • Installation Type: Screw
    • Overall Length: 13 1/8"
    • Position: Downstream
    • Sensor Type: Heated - Zirconia
    • Terminal Quantity: 4
    • Thread: M18 X 1.5 mm
    • UPC: 671607156812
    • Wrench Size: 0.88" (22 mm)
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $22.53
  • Denso Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 234-4285

    Denso® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 234-4285
    Product Specifications
    • Notes: OE Quality Replacement Sensor
    • Connector Gender: Female
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • OE Part Number: 19209805
    • Position: Upstream Passenger Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511113039
    • Wire Harness Length: 13.19" (335 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $33.23
  • Walker Products Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 250-24269

    Walker Products® Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 250-24269
    Product Specifications
    • Connector Gender: Female
    • Overall Length: 16.85"(427.99 mm)
    • Position: Upstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620041068
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 13.31"(338.074 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Premium Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $36.96
  • Delphi Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - ES20113

    Delphi® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: ES20113
    Product Specifications
    • Notes: 9in Length
    • Connector Shape: Square
    • Position: Rear Passenger Side
    • Terminal Quantity: 4
    • Terminal Type: Blade
    • UPC: 689604145265
    • Wire Harness Length: 12.4" (310 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | North Face | 6 Cyl 4.2L
    • 2003 Chevrolet Trailblazer EXT | LT | 6 Cyl 4.2L
    • 2003 Chevrolet Trailblazer EXT | LS | 6 Cyl 4.2L
    Show More
    $44.84
  • Spectra Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - OS5201

    Spectra Premium® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: OS5201
    Product Specifications
    • Connector Gender: Female
    • Connector Shape: Square
    • Installation Type: Screw
    • Overall Length: 14 5/16"
    • Position: Downstream
    • Sensor Type: Heated - Zirconia
    • Terminal Quantity: 4
    • Thread: M18 X 1.5 mm
    • UPC: 671607156836
    • Wrench Size: 0.88" (22 mm)
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $12.84
  • Denso Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 234-4650

    Denso® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 234-4650
    Product Specifications
    • Notes: OE Quality Replacement Sensor
    • Connector Gender: Male
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • Position: Upstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511146501
    • Wire Harness Length: 15.55" (395 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $33.58
  • Walker Products Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 250-24339

    Walker Products® Premium Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 250-24339
    Product Specifications
    • Connector Gender: Male
    • Overall Length: 18.82"(478.028 mm)
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620041549
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 15.28"(388.112 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Premium Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $37.93
  • Walker Products Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 350-34423

    Walker Products® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 350-34423
    Product Specifications
    • Notes: Upstream
    • Connector Gender: Female
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • Location: B2S1
    • Overall Length: 18.03"
    • Position: Downstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620092381
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 14.49"
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $33.01
  • Walker Products Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 350-34524

    Walker Products® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 350-34524
    Product Specifications
    • Notes: Downstream; Left;Downstream; Right
    • Connector Gender: Male
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • Overall Length: 14.88"
    • Position: Downstream Passenger Side
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620093371
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 11.34"
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $31.55
  • Walker Products Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 350-34225

    Walker Products® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 350-34225
    Product Specifications
    • Notes: Downstream
    • Connector Gender: Male
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • Overall Length: 18.82"
    • Position: Upstream Passenger Side
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620090455
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 15.28"
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $31.75
  • Walker Products Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 350-34412

    Walker Products® Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 350-34412
    Product Specifications
    • Notes: Upstream; Left;Upstream; Right
    • Connector Gender: Female
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • Overall Length: 16.85"
    • Position: Downstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620092275
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 13.31"
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $31.13
  • NTK OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 21044

    NTK® OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 21044
    Product Specifications
    • Notes: B1S2; OE MFR: NTK
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 18.000
    • Universal Or Specific Fit: Specific
    • UPC: 087295210444
    • Wire Quantity: 4
    • Wiring Harness Length: 12.2500
    • Part Description: 2003 Chevrolet Trailblazer EXT OE Type Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $35.53
  • NTK OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 21048

    NTK® OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 21048
    Product Specifications
    • Notes: B1S2; OE MFR: NTK;B2S2; OE MFR: NTK
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 18.000
    • Universal Or Specific Fit: Specific
    • UPC: 087295210482
    • Wire Quantity: 4
    • Wiring Harness Length: 13.0000
    • Part Description: 2003 Chevrolet Trailblazer EXT OE Type Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
    $36.71
  • NTK OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 21049

    NTK® OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 21049
    Product Specifications
    • Notes: B1S1; OE MFR: NTK
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 18.000
    • Universal Or Specific Fit: Specific
    • UPC: 087295210499
    • Wire Quantity: 4
    • Wiring Harness Length: 16.7500
    • Part Description: 2003 Chevrolet Trailblazer EXT OE Type Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 6 Cyl 4.2L
    $40.22
  • NTK OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT - 21047

    NTK® OE Type Oxygen Sensor for 2003 Chevrolet Trailblazer EXT

    PartNumber: 21047
    Product Specifications
    • Notes: B1S1; OE MFR: NTK;B2S1; OE MFR: NTK
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • Position: Upstream Driver Side
    • Thread Diameter: 0.71" (18 mm)
    • Wire Harness Length: 15.75" (400.1 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: 2003 Chevrolet Trailblazer EXT OE Type Oxygen Sensor
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | All Trims | 8 Cyl 5.3L
  • OEM 2003 Chevrolet Trailblazer EXT Sensor Asm-Heated Oxygen Diagram - 12567163
    View Related Parts

    OEM (Genuine) 2003 Chevrolet Trailblazer EXT Sensor Asm-Heated Oxygen

    PartNumber: 12567163
    OEM 2003 Chevrolet Trailblazer EXT Sensor Asm-Heated Oxygen - 12567163
    Product Specifications
    • Notes: 5.3 Liter; All Models; 5.3l; Rear
    • Location: Driver Side; Passenger Side
    • Other Names: Oxygen Sensor, Rear Oxygen Sensor
    • Item Dimensions: 7.4 x 2.1 x 2.0 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 Chevrolet Trailblazer EXT Sensor Asm-Heated Oxygen
    More Info
    Vehicle Fitment
    • 2003 Chevrolet Trailblazer EXT | LS, LT, North Face | 8 Cyl 5.3 L GAS